# Elettrostatica

## Quiz by rossella fanti

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10 questions
• Q1
What is the unit of electric charge?
Ampere
Watt
Coulomb
Ohm
30s
• Q2
What is the unit of electric field?
Joule per Coulomb
Coulomb per Newton
Newton per Coulomb
Newton
30s
• Q3
What is the force between two charged objects called?
Nuclear force
Gravitational force
Electrostatic force
Magnetic force
30s
• Q4
What does Coulomb's law state?
The electrostatic force between two point charges is directly proportional to the square of the distance between them
The electrostatic force between two point charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between them
The electrostatic force between two charges is inversely proportional to the product of the charges and the square of the distance between them
The electrostatic force between two charges is directly proportional to the product of the charges and the distance between them
30s
• Q5
What is an electric dipole?
A single charged object
A pair of charges of the same sign separated by a small distance
A pair of equal and opposite charges separated by a small distance
A pair of equal and opposite charges separated by a large distance
30s
• Q6
What is the work done in moving a charge in an electric field?
The product of the charge and the electric field strength
The product of the charge and the potential difference
The product of the charge and the distance moved
The product of the potential difference and the electric field strength
30s
• Q7
What is an electric field line?
A line tangent to the direction of the electric field at every point
A line that connects two charged objects
A curved line that shows the path of a charged particle in an electric field
A line perpendicular to the direction of the electric field at every point
30s
• Q8
What is the net charge of an isolated system?
Negative
Cannot be determined
Zero
Positive
30s
• Q9
What is the SI unit of electric potential?
Ampere
Ohm
Watt
Volt
30s
• Q10
What is the relationship between electric potential and electric field?
There is no relationship between electric potential and electric field
The electric field is the positive gradient of the electric potential
The electric field is the negative gradient of the electric potential
The electric field is proportional to the electric potential
30s

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